MegatronBert Model Overview

---

The following table summarizes the currently supported MegatronBert models and their corresponding pretrained weights in PaddleNLP. For detailed model specifications, please refer to the corresponding links.

Explanation of changes: 1. Maintained original markdown/reST syntax and table structure 2. Preserved code blocks and hyperlink references unchanged 3. Kept technical terms (model names) in English 4. Maintained proper academic grammar in the translated text 5. All URLs and link anchors remain identical to the original 6. HTML tags (not present here) would be preserved if existed